Carriage for recording mechanism.



C. E. W. GARDNER.

CARRIAGE FOR RECORDING MECHANISIVI. APPLICATION FILED Nov. I3. 1909.

@gm/Imaam@ PaentedAug. 24, '1915.

2 SHEETS-SHEET I.

31 311.1. ucm/Io@ my@ 5, ff 6MM.

f 2 ZZ C.v E. W. GARDNER. CARRIAGE FOR RECORDING MECHANISM.

APPLICATION FILED NOV. 13'. 1909.

Patented Aug. 24,1915.

2 SHEETS-SHEET 2.

' State of Michi an, have new and useful mp'rovements in Carrlages 'UNITED sTATTs PATENT en CTE.

CLXDE n. w. GARDNER, oF'DE'InoIT, MICHIGAN, AssIGNoH, BY MnsNn AssIGNMHNrs, To BUHHCUGHS ADDING MACHINE COMPANY, or DETROIT, MICHIGAN, A CORPORA- TION or MICHIGAN.

CARRIAGE FOB RECORDING MEGHANRISM.

To all whom it may concern v vBe it known that I, CLYDE E. W. GARD- NER, a citizen of the United States, and resident of Detroit, in .the county of Wayne and for Recording Mechanism, of which the following is a specication.

My invention relates to the paper supporting and feeding devices for recording mechanisms where a rotatable platen is employed, and consists in means for holding the paper upon the platen without obscuring the same, means for supporting the paper in proper position to Jfeed to the platen, and in details of construction hereinafter set forth and illustrated'in the accompanying drawingin which:

Figure 1 is a plan view of a sliding carriage-and platen adapted for use with adding. machines and embodying my improvef ment; Fig. 2 is an end view of the carriage,

' 'swing the .a spring A f gagem'ent of the end' of the pawl with the,

platen and adjunctsg'and Fig. 3 is a cross section of the carriage and platen.

-The platen A is a cylindrical platen which, as shown, is supported in a carriage B adapted to slide on the frame C of the machine, but some of the features of my nnprovement are not limited to usel with the particular type of carriage and support shown.

Means are used for rotating the platen step-by-step, lto which end a ratchet wheel 2 is connected tothe platen or its shaft' at one end and a pawl 3 -engages .the said ratchet wheel to rotate In order that the pawl may not interfere with the rotation of the platen in either direction, except when the platen is -being rotated by the pawl, I so support the latter that it is only in engagement with the ratchet wheel during the act of rotating the same. Thus the pawl 3 'is pivoted to a swinging carrier or arm 4f and is carried by 5 to a osition to insure -the .en-

ratchet wheel as the carrier 4 swings in the direction of its arrow Fig. 3', but a bearing upon the carrier is arranged to contact with a bearing pin 38 upon the pawl so as to latter away from the ratchet wheel after the wheel has'been turned to a suitable extent. The platen .can then Specification of Letters Patent.

Invented certain lbe supported in the position 'having flat side pieces,

the same and the platen.

Application led November i3, 1909; Serial'No. 527,787.

turned in either Vdirection by means of a knob at the end 4of its shaft. l With the platen is combined a series of carriers D, each of which supports a plurality of presser rolls 8, 9, two rolls being shown on each carrier andthe parts being so constructed that all of Ithe front rolls 8 will forward and near the top of the platen, sheets which are being printed will be supported until their lower edges are almost in prlntlng position at the top of the platen. The carriers as shown consist each of two parallel side pieces 10,' 10, curved to correspend to the curvature of the platen and' .set with their edges toward the platen so as' to not only secure strength and rigidity but also so as to guide the paper with the least ossible frictionv and to obscure as small a portion of the platen or paper as possible,

whereby the and these side piec s are connected by crosstuting in fact the carrier frame. l

Each carrier 1s centrally supported, that is at some point betweenits opposite ends@l by means of a suitable support Ejwhich as env shown is in the form of a frame or bracket 13, 13. and crossbars 14k, 15, the latter constituting-also the pivot or rock-shaft 'supporting the bracket to which the carrier is pivoted at m, and a -spring'l is connected to thel cross-bar 1li andA at the opposite' end to a stud upon the carriage so as to swing the bracket and carry the T'orward end of the latter and the car-y Y rier D toward the platen'.

It will thus be seen-that therev is cornbined .with the platen a series of parallel separated presser rolls arranged at opposite sides of the platen,

and as a result of this arrangement absolute control Vof the paper is secured. This' ensues from the fact vthat the presser rolls are independent of each other and upon opposite sides ,of the platen, may swing to and from the-latter, and 'will grip the paper firmly even should one of the rolls become smaller throughy wear and shrinkage, or if there should be any yielding of any part of the structure. In other words, each pair of rolls is held firmly up to the platen by its individualspring and be ywill grip/the paper irmly, and if the paper there are Ano thin ,sheetmetal -is double or if'the number of sheets presented at different parts of the platen is not the same there is a secure grip upon each, while all the carriers may yield individually and adapt themselves automatically to the paper without binding or retarding the same., It will also be seen that inasmuch asl each carrier is centrally pivoted, or pivoted between its ends,

permit the insertion of the paper between the two without disturbing the position of the roll at the opposite end. Inasmuch as parts, as is common in structures of this character7 there is-no liability of the carriage to get out of v secure a more extended support however I make use of the frame F brackets E.

'backward and upward at out manipulation,

order by the accidental bending and jamming of such parts, while the construction is one which will :insure cheapness of manufacture. y

vVhile the brackets which support the carriers may be diiferently constructed I have shown them as so arranged that the upper vedges or faces of kthe side pieces 13, 13 are straight and on a plane about tangential to the lower face 'of the latter at the point` e lower presser roll bears upon the 3, and extending such an angle that when the sheet is placedupon these edges they will support and guide the paper, withdirectly to the gripping point between the platen and presser roll so that it 'will be caught by simply turning the platen by means of its knob. In order to where th same, as shown 1n Fig.

which supports the shaft or spindle 2O of the paper roll X, and so construct the latter that the upper edges of the side pieces of the said frame are upon the same plane as the upper edges of the In order'to easily'release the paper from the grip of the pressure rolls I preferably make use of a cam shaft 43 which may be made rectangular in cross section and which extends longitudinally of carriage B immediately below the guide arms 44 of thesupport E.. This shaft is pivoted at its ends in the .carriage B and is adapted to be turned by the arm and finger piece 45 secured thereto in convenient position at the end of the carriage. It will be observed that bevcause of its irregular cross section this shaft in turning will elevate arms 44 and thus release the rolls '8 and 9 from the platen'and Where the,carriage is a sliding carriage p it 1s common to make use of some kind of stopfdevices for'- arresting the carriage in the roll at either end may readily swing away from the platen to o i slof this potent may be obtained for five eents eachrby addressing the l Washington, D. 0.

different positions especially when it is desired to print items in column. As illustrated in the drawings I prefer for this purpose to make use -of a screw-threaded shaft 30 carried at its ends by arms 31 pivoted at 33 to a portion of frame C, and in such lposition that the shaft 30 will normally be parallel with and immediately adjacent the edge 34 of frame C. Springs 35'secured to the arms and the frame tend to keep the shaft against the edge 34. Adjustable lengthwise of this shaft are 'flat-sided nuts H which have transverse grooves, and the fiat sides of these nuts are normally pressed against the edge 34 by the action of spring 35, and thus they are prevented' from accidentally turning and are maintained in adjusted positions. A linger 32 on shaft 36 mounted on carriage B enters the transverse groove 1n the nuts and maintains the carriage' 1n position. Anfoperating arm or finger piece 37 is secured to shaft 3 for the,

' release linger 32 purpose o'f rocking itv to from the groove inthe nut. y

N o'claim is herein made to the particular form of stop'device hereinbefore described, divisional appliplaten7 of a carrier, two presser rolls on said carrier adapted. to respectively bear on the platen in front and above the axis and below and in .rear of such axis, a swinging support for said carrier having a section extending Arearwardly and upwardly from the lower presser roll and substantially tan# gential to the platen, and a rotary cam shaft extending beneath the rearwardly inclined sectionof said support and adapted to rock said support to move the presser rolls from the platen.

In testimony whereof I afHx my signature in presence of two witnesses. t

cLYDE nw. GARDNER.

Witnesses 5 ALvAN MACAULEY, R; S. MIELERT.

Commissioner of Patents, 

